We recently bought a guinea pig. We prefer to not get pets from a pet store, but this guy was an exception. We were told he was a surrender, and that he was previously neglected/abused. They said he didn’t enjoy the company of other Guineas. He doesn’t seem to be too anxious when left alone in his enclosure, but he doesn’t like to be held. He makes noises when we get close to him, it sounds like “wheek”. He eats properly, and he plays with his toys, but he does sometimes try to bite or lunge at us. He does bite at the bars of his enclosure, but he only does it when it’s feeding time. (especially when it’s time for his veggies lol) We’ve given him time to get used to our home and the people in it. He seems to really enjoy our company as long as we leave his enclosure door open and play with him inside the enclosure, but as soon as i take him out of it he gets upset. Is this behavior i should be worried about, or is it normal? I worry that he is too stressed, or that we are making him anxious.